10856939 has 2 divisors, whose sum is σ = 10856940. Its totient is φ = 10856938.

The previous prime is 10856929. The next prime is 10856959. The reversal of 10856939 is 93965801.

It is a weak prime.

It is an emirp because it is prime and its reverse (93965801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10856939 - 2¹² = 10852843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10856896 and 10856905.

It is not a weakly prime, because it can be changed into another prime (10856929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428469 + 5428470.

It is an arithmetic number, because the mean of its divisors is an integer number (5428470).

Almost surely, 2^10856939 is an apocalyptic number.

10856939 is a deficient number, since it is larger than the sum of its proper divisors (1).

10856939 is an equidigital number, since it uses as much as digits as its factorization.

10856939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 10856939 is about 3294.9869498983. The cubic root of 10856939 is about 221.4296630837.

The spelling of 10856939 in words is "ten million, eight hundred fifty-six thousand, nine hundred thirty-nine".